Subspecies
aspera is known from
CT, MA, ME,
NH,
RI. Subspecies
rugosa is known from
CT, MA, ME,
NH,
RI,
VT. It is much more common on the New England landscape than ssp.
aspera.

19×20.
Solidago rugosa
×
Solidago sempervirens
→Solidago×‌asperula
Desf. is a rare goldenrod hybrid known from
CT, MA, ME,
NH. It is known from coastal states where
S. sempervirens comes into contact with
S. rugosa at the upper limit of coastal marshes and beaches. It can be separated from the former by pubescent stems (at least on the upper portion) and from the latter by leaf blades with shorter teeth and less rugose veins. It can resemble
S. latissimifolia, but the hybrid shows more hairs on the stems and ± sheathing petiole bases on lower leaves.